⚡ TL;DR

The UPSC Mains answer booklet (QCAB) is A4-sized with approximately 40 ruled pages plus 3 blank pages for rough work and diagrams. Standard practice is 2 pages per 10-mark answer and up to 3.5–4 pages per 15-mark answer. Leaving wide margins (the printed margin line) and writing on both sides of the page is standard.

QCAB Basics

QCAB stands for Question-cum-Answer Booklet — the answer booklet issued in UPSC Mains.

FeatureDetail
SizeA4 (210 x 297 mm)
Pages~40 ruled pages + 3 blank pages
Line spacingStandard ruling (~8mm between lines)
MarginPre-printed left margin
Ink colourBlue or black (ballpoint, gel, or rollerball)
Additional bookletsAvailable on request if you fill the main booklet

Page Budget Per Question

Question TypeWord LimitRecommended Pages
10-mark question150 words1.5–2 pages
15-mark question250 words2.5–3.5 pages

At approximately 70–80 words per ruled A4 page (with normal-sized handwriting), 250 words = approximately 3–3.5 pages.

Formatting Rules

  1. Write question number clearly before each answer — the examiner must be able to identify which question you are answering
  2. Always write within the printed margin — writing in the margin reduces legibility
  3. Leave a blank line between paragraphs — visual separation helps the examiner parse your answer structure
  4. Do not use pencil for the main answer text — pencil is only for diagrams/maps
  5. Never overwrite or scratch repeatedly — a clean single strike-through is sufficient for a correction

The Blank Pages (Rough Work)

The 3 blank pages at the back are for rough work, planning, and diagrams. Use them:

  • Write your answer outline (bullet points) in the rough section before writing the answer
  • Draw diagram drafts here, then reproduce in the answer as needed

When to Request an Additional Booklet

Request an additional booklet when you are on the second-to-last page — not when you have completely run out. This avoids a gap in writing flow while waiting.

📚 Sources & References

Ujiyari Ujiyari — Current Affairs